Dissipation in Waveguide or Cavity?

[phantomlsh]

Hi,

I am wondering if there is a way to implement dissipation in waveguide and/or cavity.

Thank you very much!

[mabuni1998]

If you can simply write the dissipation using Lindblad operators, then it can be included using a Monte-Carlo wavefunction approach. I have already made a function waveguide_montecarlo(times,psi,H,J;fout=nothing,kwargs...), which takes in J, which is a list of jump operators. See the documentation in QuantumOptics.jl for more information: https://docs.qojulia.org/timeevolution/mcwf/ or https://docs.qojulia.org/api/#QuantumOptics.timeevolution.mcwf_dynamic

The interaction with this is relatively untested, but I am very interested in exploring this direction. I think it is also worth discussing whether, let's say, additional cavity losses could just be included by introducing an extra ancillary waveguide.

For your question about introducing waveguide losses, I am not sure one can simply just write this as a Lindblad operator, and thus I am more unsure of how that would be done.